Due to the ongoing uncertainty with international travel restrictions, the Scientific Committee have taken the difficult decision to cancel the IWHOD meeting, which was scheduled to take place in Seville, Spain 25th - 27th March 2021.  The plan is to delay the 2021 Workshop to 2022 so, please can we request you to keep these dates for your diaries - 24th to 26th March 2022 in Seville, Spain.

To keep the IWHOD spirit alive, we are holding a series of webinars in 2020 and 2021.  IWHOD Scientific Committee members Professor Marina Klein and Professor Stanislas Pol will be chairing the first interactive webinar on 16 October 2020 from 15.00hrs - 16.00hrs BST.  Our excellent line-up of speakers include:

  1. Daniela van Santen presenting on ‘Estimating trends in hepatitis C incidence among individuals attending primary care clinics that specialise in the care of people who inject drugs in Australia between 2009 and 2018’.
  2. Andreea Adelina Artenie presenting on ‘Diversity of detention patterns among people who inject drugs and the associated risk with incident hepatitis C virus (HCV) infection: Implications for hepatitis C prevention’.
  3. Mathieu Chalouni presenting on ‘HIV co-infection direct and indirect effect on the risk of non-liver-related cancers in HCV infected participants treated by DAA’.

We do hope you are able to attend and look forward to you joining us.  Please click on the link below to register to the webinar:



The International Workshop on HIV and Hepatitis Observational Databases (IWHOD) brings senior and junior HIV and hepatitis observational database researchers together to advance the methodology and analysis of observational data. No other workshop or conference devotes attention to the methodology of setting up and analyzing observational data, despite their importance in providing critical information on population outcome in real world settings outside the controlled setting of randomized trials. We are once again aiming to include attendees representing cohort studies from all regions. As in the past, we encourage discussion of work in progress, so all data presented will not be publicised outside of the Workshop.